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Ex 3.2, 3 - Chapter 3 Class 12 Matrices - Part 4

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Ex 3.2, 3 Compute the indicated products (iv) [■8(2&3&[email protected]█([email protected])&█([email protected])&█([email protected]))] [■8(1&−3&[email protected]█([email protected])&█([email protected])&█([email protected]))] [■8(2&3&[email protected]█([email protected])&█([email protected])&█([email protected]))]_(3 × 3) [■8(1&−3&[email protected]█([email protected])&█([email protected])&█([email protected]))]_(3 × 3) = [■8(2×1+3×0+4×3&2×(−3)+3×2+4×0&2×5+3×4+4×[email protected]×1+4×0+5×3&3×(−3)+4×2+5×0&3×5+4×4+5×[email protected]×1+5×0+6×3&4×(−3)+5×2+6×0&4×5+5×4+6×5)]_(3 × 3) = [■8(2+0+12&−6+6+0&[email protected]+0+15&−9+8+0&[email protected]+0+18&−12+10+0&20+20+30)] = [■8(14&0&[email protected]&−1&[email protected]&−2&70)]

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.